CN107990765B - Integrated high-efficiency phase-change centrifugal heat exchanger - Google Patents
Integrated high-efficiency phase-change centrifugal heat exchanger Download PDFInfo
- Publication number
- CN107990765B CN107990765B CN201711376058.6A CN201711376058A CN107990765B CN 107990765 B CN107990765 B CN 107990765B CN 201711376058 A CN201711376058 A CN 201711376058A CN 107990765 B CN107990765 B CN 107990765B
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- Prior art keywords
- magnetic conduction
- wall
- disc
- magnetic
- pole shoe
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- 230000003068 static effect Effects 0.000 claims abstract description 38
- 239000007788 liquid Substances 0.000 claims abstract description 36
- 239000011553 magnetic fluid Substances 0.000 claims abstract description 19
- 230000008859 change Effects 0.000 claims description 8
- 239000012792 core layer Substances 0.000 claims description 6
- 239000000696 magnetic material Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 238000004806 packaging method and process Methods 0.000 claims description 5
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 238000005245 sintering Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 10
- 230000017525 heat dissipation Effects 0.000 abstract description 9
- 230000000694 effects Effects 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000005213 imbibition Methods 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D11/00—Heat-exchange apparatus employing moving conduits
- F28D11/02—Heat-exchange apparatus employing moving conduits the movement being rotary, e.g. performed by a drum or roller
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention relates to a novel integrated high-efficiency phase-change centrifugal heat exchanger which comprises a magnetic conduction shaft, a movable disc sleeved outside the upper end of the magnetic conduction shaft, a static disc sleeved outside the middle section of the magnetic conduction shaft, an outer rotor motor component arranged at the lower end of the magnetic conduction shaft, a magnetic conduction ring connected with the outer periphery of the bottom of the movable disc and sleeved outside the static disc, a liquid suction core structure arranged between the bottom surface of the movable disc and the top surface of the static disc and positioned in the magnetic conduction ring, a liquid working medium filled in an inner cavity of the liquid suction core structure, a first permanent magnet and a first pole shoe arranged between the outer wall of the magnetic conduction shaft and the inner wall of the static disc, a second permanent magnet and a second pole shoe arranged between the outer wall of the static disc and the inner wall of the magnetic conduction ring, a first magnetic fluid arranged between the inner wall of the first pole shoe and the outer wall of the magnetic conduction shaft, and a second magnetic fluid arranged between the outer wall of the second pole shoe and the inner wall of the magnetic conduction ring. The invention solves the problem of integrating rapid heat transfer and rapid heat dissipation, and solves the sealing problem under high-speed rotation by utilizing the principle of magnetic fluid dynamic sealing.
Description
Technical Field
The invention relates to the technical field of centrifugal heat exchangers, in particular to an integrated efficient phase-change centrifugal heat exchanger.
Background
At present, compared with the traditional heat dissipation device, the air bearing heat exchanger and the temperature equalizing plate are used as two novel heat exchange and dissipation structures, and the heat dissipation effect is obviously improved. The air bearing heat exchanger is a brand new air cooling heat exchanger, the heat exchanger is composed of a brushless motor, a static disc fixed on a bottom plate, fins and a movable disc formed by fin base plates, and an air gap of about 30 mu m is arranged between the planes of the movable disc and the static disc; the heat load is loaded on the static disc, the heat on the static disc is conducted to the fins of the movable disc, the conventional static fins rotate at a high speed under the drive of the motor, and the heat is rapidly transferred out by air through centrifugal motion. The temperature equalizing plate is a gas-liquid phase heat transfer device and consists of an upper cavity, a lower cavity, a liquid suction core structure and a vacuum cavity, wherein the vacuum cavity is vacuumized and filled with working medium; when the evaporator works, the evaporation surface of the temperature equalizing plate is acted by a local heat source, vapor is rapidly diffused to the condensation surface and then condensed into a liquid working medium to release heat, and the liquid working medium flows back to the evaporation surface through capillary action of the liquid suction core, so that circulation of the working medium and uninterrupted transmission of heat are completed.
However, there are drawbacks to either air bearing heat exchangers or temperature equalization plates. Firstly, when the air bearing heat exchanger works, an air layer exists between the movable and static plates, and the existence of an air medium prevents friction between the movable and static plates, but causes larger heat resistance and unsatisfactory heat transfer effect. Secondly, the heat transfer performance of the natural temperature equalizing plate is excellent, but if the heat of the condensing end cannot be quickly taken away, the heat dissipation efficiency of the heat equalizing plate is also affected.
Disclosure of Invention
The invention aims to provide an integrated high-efficiency phase-change centrifugal heat exchanger, which solves the problem of integrating rapid heat transfer and rapid heat dissipation based on the principles of gas-liquid phase change and centrifugal heat dissipation, and solves the sealing problem under high-speed rotation by utilizing the principle of magnetic fluid dynamic sealing.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides an integrated high-efficient phase transition centrifugal heat exchanger, including the magnetic conduction axle, the cover is established in the movable plate in the magnetic conduction axle upper end outside, the quiet dish in the magnetic conduction axle middle section outside is established to the cover, the outer rotor motor assembly of setting in the magnetic conduction axle lower extreme, link to each other with movable plate bottom periphery and the cover is established in the magnetic conduction ring in quiet dish outside, set up between movable plate bottom surface and quiet set top surface and be located the imbibition core structure in the magnetic conduction, liquid working medium in filling imbibition core structure inner chamber, set up first permanent magnet and the first pole shoe between magnetic conduction axle outer wall and quiet set inner wall, set up second permanent magnet and the second pole shoe between quiet set outer wall and magnetic conduction ring inner wall, set up first magnetic fluid between the inner wall of first pole shoe and magnetic fluid axle outer wall and set up the second magnetic fluid between the outer wall of second pole shoe and magnetic conduction ring inner wall.
Further, the movable plate comprises a fin base plate and fins arranged above the fin base plate.
Furthermore, a liquid filling and evacuating packaging opening communicated with the inner cavity of the liquid suction core structure is formed in the static disc.
Further, the liquid suction core structure comprises liquid suction core layers arranged on the bottom surface of the movable disc and the top surface of the static disc; the liquid absorption core layer is formed by vacuum sintering of aluminum powder.
Furthermore, the movable disc and the static disc are made of non-magnetic materials, and the non-magnetic materials are aluminum alloy.
Furthermore, the magnetic conduction shaft, the magnetic conduction ring, the first pole shoe and the second pole shoe are made of magnetic conduction materials, and the magnetic conduction materials are 2Cr13 steel.
According to the technical scheme, the heat exchanger is based on the principles of gas-liquid phase change and centrifugal heat dissipation, the temperature equalization plate structure is added between the movable plate and the fixed plate, the problem that rapid heat transfer and rapid heat dissipation are integrated is effectively solved, the heat transfer efficiency from the fixed plate to the movable plate can be greatly improved, and the sealing problem under high-speed rotation is solved by utilizing the principle of magnetic fluid dynamic sealing. The heat exchanger has good heat transfer and heat dissipation efficiency, and can well solve the heat control problem of the ultra-large scale integrated circuit.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Wherein:
1. the fin, 2, the fin base plate, 3, the static disc, 4, the magnetic conduction ring, 5, the liquid suction core structure, 6, the liquid working medium, 7, the second permanent magnet, 8, the second magnetic fluid, 9, the second pole shoe, 10, a magnetic conduction shaft, 11, an outer rotor motor assembly, 12, a liquid filling and evacuating packaging port, 13, a first permanent magnet, 14, a first magnetic fluid, 15 and a first pole shoe.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
the integrated high-efficiency phase change centrifugal heat exchanger shown in fig. 1 comprises a magnetic conduction shaft 10, a movable disc sleeved outside the upper end of the magnetic conduction shaft 10, a static disc 3 sleeved outside the middle section of the magnetic conduction shaft 10, an outer rotor motor assembly 11 arranged at the lower end of the magnetic conduction shaft 10, a magnetic conduction ring 4 connected with the periphery of the bottom of the movable disc and sleeved outside the static disc 3, a liquid suction core structure 5 arranged between the bottom surface of the movable disc and the top surface of the static disc 3 and positioned in the magnetic conduction ring 4, a liquid working medium 6 filled in the inner cavity of the liquid suction core structure 5, a first permanent magnet 13 and a first pole shoe 15 arranged between the outer wall of the magnetic conduction shaft 10 and the inner wall of the static disc 3, a second permanent magnet 7 and a second pole shoe 9 arranged between the outer wall of the static disc 3 and the inner wall of the magnetic conduction ring 4, a first magnetic fluid 14 arranged between the inner wall of the first pole shoe 9 and the outer wall of the magnetic conduction shaft 10, and a second magnetic fluid 8 arranged between the outer wall of the second pole shoe 9 and the inner wall of the magnetic conduction ring 4. The first pole shoes comprise two pole shoes which are sequentially arranged from top to bottom, and the first permanent magnet is positioned between the upper first pole shoe and the lower first pole shoe. The second pole shoes comprise two pole shoes which are sequentially arranged from top to bottom, and the second permanent magnet is positioned between the upper pole shoe and the lower pole shoe.
Further, the movable plate comprises a fin base plate 2 and fins 1 arranged above the fin base plate 2.
Furthermore, a liquid filling and evacuating packaging port 12 communicated with the inner cavity of the liquid suction core structure 5 is formed in the static disc 3.
Further, the wick structure 5 includes a wick layer disposed on the bottom surface of the movable plate and on the top surface of the stationary plate 3. The liquid absorption core layer is sintered on the bottom surface of the movable disc and the top surface of the static disc 3 by adopting an aluminum powder vacuum sintering method. The liquid absorption core layer, the inner wall of the magnetic conduction ring, the outer wall of the magnetic conduction shaft, the first pole shoe and the second pole shoe enclose an annular vacuum cavity.
Furthermore, the movable disc and the static disc 3 are made of non-magnetic materials, and the non-magnetic materials are aluminum alloy.
Further, the magnetic conduction shaft 10, the magnetic conduction ring 4, the first pole shoe 15 and the second pole shoe 9 are made of magnetic conduction materials, and the magnetic conduction materials are 2Cr13 steel. The magnetic conduction shaft 10 and the magnetic conduction ring 4 are connected with the movable disc through a vacuum brazing method.
The working principle of the invention is as follows:
the heat exchanger is based on the magnetic fluid dynamic sealing principle, and a closed magnetic loop is formed by a permanent magnet, a first pole shoe, a second pole shoe, a magnetic conduction ring/a magnetic conduction shaft and a first magnetic fluid and a second magnetic fluid. The first magnetic fluid and the second magnetic fluid are adsorbed in the sealing gap to form an O-shaped movable sealing ring, so that the sealing effect of the movable disc under high-speed rotation is achieved. And the sealed cavity between the movable and the static plates is filled with liquid, vacuumized and packaged through the liquid filling and evacuating packaging port, and a 'temperature equalizing plate' structure is formed between the movable and the static plates, so that an air layer of the original gas bearing heat exchanger is replaced.
When the device works, a heat load is loaded on the lower surface of the static disc, heat enters the cavity of the liquid suction core structure from the upper surface of the static disc through heat conduction, liquid working medium in the liquid suction core close to the upper surface of the static disc is evaporated and absorbed to quickly vaporize into steam, and the steam is diffused from a high-temperature area on the upper surface of the static disc to a low-temperature area on the lower surface of the movable disc, is condensed on the lower surface of the movable disc through cooling and releases heat. The magnetic conduction shaft drives the movable disc to rotate at a high speed under the drive of a motor in the outer rotor motor assembly, and heat is rapidly dissipated through the fins by high-speed centrifugal movement.
The above examples are only illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art to the technical solution of the present invention should fall within the scope of protection defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (6)
1. An integrated high-efficiency phase-change centrifugal heat exchanger is characterized in that: the magnetic conduction device comprises a magnetic conduction shaft, a movable disc sleeved outside the upper end of the magnetic conduction shaft, a static disc sleeved outside the middle section of the magnetic conduction shaft, an outer rotor motor assembly arranged at the lower end of the magnetic conduction shaft, a magnetic conduction ring connected with the periphery of the bottom of the movable disc and sleeved outside the static disc, a liquid suction core structure arranged between the bottom surface of the movable disc and the top surface of the static disc and positioned in the magnetic conduction ring, a liquid working medium filled in the inner cavity of the liquid suction core structure, a first permanent magnet and a first pole shoe arranged between the outer wall of the magnetic conduction shaft and the inner wall of the static disc, a second permanent magnet and a second pole shoe arranged between the outer wall of the static disc and the inner wall of the magnetic conduction ring, a first magnetic fluid arranged between the inner wall of the first pole shoe and the outer wall of the magnetic conduction shaft, and a second magnetic fluid arranged between the outer wall of the second pole shoe and the inner wall of the magnetic conduction ring.
2. The integrated efficient phase change centrifugal heat exchanger of claim 1, wherein: the movable plate comprises a fin base plate and fins arranged above the fin base plate.
3. The integrated efficient phase change centrifugal heat exchanger of claim 1, wherein: and a liquid filling and evacuating packaging port communicated with the inner cavity of the liquid suction core structure is formed in the static disc.
4. The integrated efficient phase change centrifugal heat exchanger of claim 1, wherein: the liquid suction core structure comprises liquid suction core layers arranged on the bottom surface of the movable disc and the top surface of the static disc; the liquid absorption core layer is formed by vacuum sintering of aluminum powder.
5. The integrated efficient phase change centrifugal heat exchanger of claim 1, wherein: the movable disc and the static disc are made of non-magnetic materials, and the non-magnetic materials are aluminum alloy.
6. The integrated efficient phase change centrifugal heat exchanger of claim 1, wherein: the magnetic conduction shaft, the magnetic conduction ring, the first pole shoe and the second pole shoe are all made of magnetic conduction materials, and the magnetic conduction materials are 2Cr13 steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711376058.6A CN107990765B (en) | 2017-12-19 | 2017-12-19 | Integrated high-efficiency phase-change centrifugal heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711376058.6A CN107990765B (en) | 2017-12-19 | 2017-12-19 | Integrated high-efficiency phase-change centrifugal heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107990765A CN107990765A (en) | 2018-05-04 |
| CN107990765B true CN107990765B (en) | 2024-02-09 |
Family
ID=62039049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711376058.6A Active CN107990765B (en) | 2017-12-19 | 2017-12-19 | Integrated high-efficiency phase-change centrifugal heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107990765B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2788113Y (en) * | 2005-04-22 | 2006-06-14 | 兖州煤业股份有限公司 | Heat exchanger |
| CN1937211A (en) * | 2005-09-19 | 2007-03-28 | 建凖电机工业股份有限公司 | Radiating device |
| CN201718155U (en) * | 2010-06-26 | 2011-01-19 | 邓方杰 | Electric induced draft blade radiator |
| CN204733212U (en) * | 2015-07-09 | 2015-10-28 | 陈卡丹 | Heat radiation mobile phone shell |
| CN106604606A (en) * | 2015-10-16 | 2017-04-26 | 莱尔德电子材料(深圳)有限公司 | Thermally-conductive electromagnetic interference (EMI) absorbers |
| WO2017157832A1 (en) * | 2016-03-18 | 2017-09-21 | Philips Lighting Holding B.V. | Cooling arrangement for cooling an apparatus |
| CN207662245U (en) * | 2017-12-19 | 2018-07-27 | 中国电子科技集团公司第十六研究所 | A kind of efficient phase transformation centrifugation heat exchanger of novel integrated |
-
2017
- 2017-12-19 CN CN201711376058.6A patent/CN107990765B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2788113Y (en) * | 2005-04-22 | 2006-06-14 | 兖州煤业股份有限公司 | Heat exchanger |
| CN1937211A (en) * | 2005-09-19 | 2007-03-28 | 建凖电机工业股份有限公司 | Radiating device |
| CN201718155U (en) * | 2010-06-26 | 2011-01-19 | 邓方杰 | Electric induced draft blade radiator |
| CN204733212U (en) * | 2015-07-09 | 2015-10-28 | 陈卡丹 | Heat radiation mobile phone shell |
| CN106604606A (en) * | 2015-10-16 | 2017-04-26 | 莱尔德电子材料(深圳)有限公司 | Thermally-conductive electromagnetic interference (EMI) absorbers |
| WO2017157832A1 (en) * | 2016-03-18 | 2017-09-21 | Philips Lighting Holding B.V. | Cooling arrangement for cooling an apparatus |
| CN207662245U (en) * | 2017-12-19 | 2018-07-27 | 中国电子科技集团公司第十六研究所 | A kind of efficient phase transformation centrifugation heat exchanger of novel integrated |
Non-Patent Citations (1)
| Title |
|---|
| 气体轴承换热器技术研究;谢洪涛;《低温与超导》;第45卷(第1期);第23-26页 * |
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| CN107990765A (en) | 2018-05-04 |
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Address after: 230088 658 Wangjiang West Road, Hefei high tech Zone, Anhui Applicant after: CHINA ELECTRONICS TECHNOLOGY Group CORPORATION NO 16 INSTITUTE Address before: No. 439, Suixi Road, Luyang District, Hefei City, Anhui Province, 230043 Applicant before: CHINA ELECTRONICS TECHNOLOGY Group CORPORATION NO 16 INSTITUTE |
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